.mt10{
	margin-top:10px;
}
.mt20{
	margin-top:20px;
}
.mb10{
	margin-bottom:10px;
}
.mb20{
	margin-bottom:20px;
}
.mr10{
	margin-right:10px;
}
.mrf10{
	margin-right:-10px;
}
.mr20{
	margin-right:20px;
}
.ml10{
	margin-left:10px;
}
.ml20{
	margin-left:20px;
}
.pd5-10{
	padding:5px 10px;
}
.fl{
	float:left;
}
.fr{
	float:right;
}
.text-center{
	text-align:center;
}
table.text-center th, table.text-center td{
	text-align:center;
}